Table 1.
Sperm quality traits in relation to bull fertility group
| LF | HF | |||||||
|---|---|---|---|---|---|---|---|---|
| N | Mean ± SD | Min | Max | n | Mean ± SD | Min | Max | |
| Progressive motility (%) | 28 | 36.21 ± 13.33 | 9.50 | 66.60 | 32 | 37.82 ± 7.95 | 19.50 | 58.60 |
| PMAI sperm (%) | 28 | 45.96 ± 8.63 | 20.66 | 58.98 | 32 | 48.98 ± 8.75 | 26.52 | 63.67 |
| CposPInegPNAnegFnegMpos sperm (%) | 28 | 31.12 ± 6.66 | 17.19 | 45.54 | 32 | 35.08 ± 8.19 | 19.27 | 55.19 |
| Mean DFI | 28 | 201.91 ± 3.50 | 198.53 | 214.29 | 32 | 201.02 ± 5.99 | 179.30 | 214.94 |
| SD of DFI | 28 | 33.52 ± 11.60 | 20.53 | 73.77 | 32 | 36.65 ± 9.91 | 20.95 | 65.63 |
| %DFI (%) | 28 | 4.01 ± 1.59 | 2.05 | 8.65 | 32 | 4.57 ± 2.21 | 2.04 | 10.14 |
LF low-fertility group, HF high-fertility group; n, number of ejaculates, PMAI percentage of sperm with intact plasma membrane and unstained acrosome, CposPInegPNAnegFnegMpos percentage of sperm with high esterase activity, intact plasma membrane, unstained acrosome, low intracellular Ca2+ levels and high mitochondrial membrane potential, DFI DNA fragmentation index, SD standard deviation, %DFI percentage of sperm with high DNA fragmentation-index